Straightening iron



FIG. 1 is a top, right side perspective view of a new, original andornamental design for a straightening iron, the straightening irondepicted in a closed position;

FIG. 2 is a right side elevation view of FIG. 1;

FIG. 3 is a left side elevation view of FIG. 1;

FIG. 4 is a front elevation of FIG. 1;

FIG. 5 is a rear elevation view of FIG. 1;

FIG. 6 is a top plan view of FIG. 1;

FIG. 7 is a bottom plan view of FIG. 1;

FIG. 8 is a top, right side perspective view of the straightening ironin an open position;

FIG. 9 is a right side elevation view of FIG. 8;

FIG. 10 is a left side elevation view of FIG. 8;

FIG. 11 is a front elevation of FIG. 8;

FIG. 12 is a rear elevation view of FIG. 8;

FIG. 13 is a top plan view of FIG. 8; and,

FIG. 14 is a bottom plan view of FIG. 8.

The broken lines in the drawings depict portions of the straighteningiron that form no part of the claimed design.

CLAIM The ornamental design for a straightening iron, as shown anddescribed.